package com.cost.controller;

import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.*;
import com.cost.common.AlipayConfig;
import com.cost.common.Status;
import com.cost.service.CostRechargeService;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * @author VULCAN
 */
@CrossOrigin
@RestController
@RequestMapping("/ali")
public class AlipayController {

    /**
     * 服务对象
     */
    @Resource
    private CostRechargeService costRechargeService;

    @RequestMapping("/pay")
    public void pay(HttpServletRequest request, HttpServletResponse response) throws Exception{
        /**
         * 获得初始化的AlipayClient
         */

        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
        /**
         * 设置请求参数
         */
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(AlipayConfig.return_url);
        alipayRequest.setNotifyUrl(AlipayConfig.notify_url);
        /**
         * 商户订单号，商户网站订单系统中唯一订单号，必填
         */
        String outTradeNo = new String(request.getParameter("WIDout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 付款金额，必填
         */
        String totalAmount = new String(request.getParameter("WIDtotal_amount").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 订单名称，必填
         */
        String subject = new String(request.getParameter("WIDsubject").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 商品描述，可空
         */
        String body = new String(request.getParameter("WIDbody").getBytes("ISO-8859-1"),"UTF-8");

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ outTradeNo +"\","
                + "\"total_amount\":\""+ totalAmount +"\","
                + "\"subject\":\""+ subject +"\","
                + "\"body\":\""+ body +"\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");


         /**
         *       请求
         */
        String result = alipayClient.pageExecute(alipayRequest).getBody();

        /**
         * 输出
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        out.write(result.getBytes());

        Long l = new Long(outTradeNo);
        Double d = new Double(totalAmount);

        this.costRechargeService.recharg(l,d);
    }

    @RequestMapping("/query")
    public void query(HttpServletRequest request, HttpServletResponse response) throws Exception{
        /**
         * 获得初始化的AlipayClient
         */
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        /**
         * 设置请求参数
         */
        AlipayTradeQueryRequest alipayRequest = new AlipayTradeQueryRequest();

        /**
         * 商户订单号，商户网站订单系统中唯一订单号
         */
        String outTradeNo = new String(request.getParameter("WIDTQout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 支付宝交易号
         */
        String tradeNo = new String(request.getParameter("WIDTQtrade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 请二选一设置
         */
        alipayRequest.setBizContent("{\"out_trade_no\":\""+ outTradeNo +"\","+"\"trade_no\":\""+ tradeNo +"\"}");

        /**
         * 请求
         */
        String result = alipayClient.execute(alipayRequest).getBody();

        /**
         * 输出
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        out.write(result.getBytes());
    }

    @RequestMapping("/refund")
    public void refund(HttpServletRequest request, HttpServletResponse response) throws Exception{
        /**
         * 获得初始化的AlipayClient
         */
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        /**
         * 设置请求参数
         */
        AlipayTradeRefundRequest alipayRequest = new AlipayTradeRefundRequest();

        /**
         * 商户订单号，商户网站订单系统中唯一订单号
         */
        String outTradeNo = new String(request.getParameter("WIDTRout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 支付宝交易号
         */
        String tradeNo = new String(request.getParameter("WIDTRtrade_no").getBytes("ISO-8859-1"),"UTF-8");

        /**
         *  请二选一设置
         *  需要退款的金额，该金额不能大于订单金额，必填
         */
        String refundAmount = new String(request.getParameter("WIDTRrefund_amount").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 退款的原因说明
         */
        String refundReason = new String(request.getParameter("WIDTRrefund_reason").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 标识一次退款请求，同一笔交易多次退款需要保证唯一，如需部分退款，则此参数必传
         */
        String outRequestNo = new String(request.getParameter("WIDTRout_request_no").getBytes("ISO-8859-1"),"UTF-8");

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ outTradeNo +"\","
                + "\"trade_no\":\""+ tradeNo +"\","
                + "\"refund_amount\":\""+ refundAmount +"\","
                + "\"refund_reason\":\""+ refundReason +"\","
                + "\"out_request_no\":\""+ outRequestNo +"\"}");

        /**
         * 请求
         */
        String result = alipayClient.execute(alipayRequest).getBody();

        /**
         * 输出
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        out.write(result.getBytes());
    }

    @RequestMapping("/refundquery")
    public void refundquery(HttpServletRequest request, HttpServletResponse response) throws Exception{
        /**
         * 获得初始化的AlipayClient
         */
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        /**
         * 设置请求参数
         */
        AlipayTradeFastpayRefundQueryRequest alipayRequest = new AlipayTradeFastpayRefundQueryRequest();

        /**
         * 商户订单号，商户网站订单系统中唯一订单号
         */
        String outTradeNo = new String(request.getParameter("WIDRQout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 支付宝交易号
         */
        String tradeNo = new String(request.getParameter("WIDRQtrade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         *         请二选一设置
         *         请求退款接口时，传入的退款请求号，如果在退款请求时未传入，则该值为创建交易时的外部交易号，必填
         */
        String outRequestNo = new String(request.getParameter("WIDRQout_request_no").getBytes("ISO-8859-1"),"UTF-8");

        alipayRequest.setBizContent("{\"out_trade_no\":\""+ outTradeNo +"\","
                +"\"trade_no\":\""+ tradeNo +"\","
                +"\"out_request_no\":\""+ outRequestNo +"\"}");

        /**
         * 请求
         */
        String result = alipayClient.execute(alipayRequest).getBody();

        /**
         * 输出
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        out.write(result.getBytes());
    }

    @RequestMapping("/close")
    public void close(HttpServletRequest request, HttpServletResponse response) throws Exception{
/**
 * 获得初始化的AlipayClient
 */
        AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);

        /**
         * 设置请求参数
         */
        AlipayTradeCloseRequest alipayRequest = new AlipayTradeCloseRequest();
        /**
         * 商户订单号，商户网站订单系统中唯一订单号
         */
        String outTradeNo = new String(request.getParameter("WIDTCout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 支付宝交易号
         */
        String tradeNo = new String(request.getParameter("WIDTCtrade_no").getBytes("ISO-8859-1"),"UTF-8");
        /**
         * 请二选一设置
         */
        alipayRequest.setBizContent("{\"out_trade_no\":\""+ outTradeNo +"\"," +"\"trade_no\":\""+ tradeNo +"\"}");

        /**
         * 请求
         */
        String result = alipayClient.execute(alipayRequest).getBody();

        /**
         * 输出
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        out.write(result.getBytes());


    }

    @RequestMapping("notify")
    public void notify(HttpServletRequest request, HttpServletResponse response) throws Exception{
    /**
     * 获取支付宝POST过来反馈信息
     */
        Map<String,String> params = new HashMap<String,String>(16);
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            /**
             *   乱码解决，这段代码在出现乱码时使用
             */
            params.put(name, valueStr);
        }
        /**
         * 调用SDK验证签名
         */
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type);


	/* *
	    实际验证过程建议商户务必添加以下校验：
	1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
	2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
	3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
	4、验证app_id是否为该商户本身。
	*/
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        /**
         * 验证成功
         */
        if(signVerified) {
            /**
             * 商户订单号
             */
            String outTradeNo = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            /**
             * 支付宝交易号
             */
            String tradeNo = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            /**
             * 交易状态
             */
            String tradeStatus = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");

            if(tradeStatus.equals(Status.TRADE_FINISHED)){
                /**
                 *  //判断该笔订单是否在商户网站中已经做过处理
                 *                 //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                 *                 //如果有做过处理，不执行商户的业务程序
                 *
                 *                 //注意：
                 *                 //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
                 */
            }else if (tradeStatus.equals(Status.TRADE_SUCCESS)){
                /**
                 *  //判断该笔订单是否在商户网站中已经做过处理
                 *                 //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                 *                 //如果有做过处理，不执行商户的业务程序
                 *
                 *                 //注意：
                 *                 //付款完成后，支付宝系统发送该交易状态通知
                 */
            }

            out.println("success");
        }else {
            /**
             * /验证失败
             */
            out.println("fail");
            /**
             *  //调试用，写文本函数记录程序运行情况是否正常
             *             //String sWord = AlipaySignature.getSignCheckContentV1(params);
             *             //AlipayConfig.logResult(sWord);
             */

        }

    }

    @RequestMapping("returnUrl")
    public void returnUrl(HttpServletRequest request, HttpServletResponse response) throws Exception{
        Map<String,String> params = new HashMap<String,String>(16);
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            /**
             * 乱码解决，这段代码在出现乱码时使用
             */
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        /**
         * 调用SDK验证签名
         */
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type);

        /**
         * /——请在这里编写您的程序（以下代码仅作参考）——
         */
        response.setContentType("text/html; charset=utf-8");
        response.setCharacterEncoding("utf-8");
        ServletOutputStream out = response.getOutputStream();
        if(signVerified) {
            /**
             * 商户订单号
             */
            String outTradeNo = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            /**
             * /支付宝交易号
             */
            String tradeNo = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            /**
             * 付款金额
             */
            String totalAmount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");

            out.write(("trade_no:"+tradeNo+"<br/>out_trade_no:"+outTradeNo+"<br/>total_amount:"+totalAmount).getBytes());
        }else {
            out.println("验签失败");
        }
    }

}
